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The absence of fossil evidence for intermediary stages between major transitions in organic design, indeed our inability, even in our imagination, to construct functional intermediates in many cases, has been a persistent and nagging problem for gradualist accounts of evolution.

Stephen Jay Gould

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Stephen Jay Gould
Age: 60 †
Born: 1941
Born: September 10
Died: 2002
Died: May 20
Evolutionary Biologist
Historian
Paleontologist
Pathologist
Philosopher
University Teacher
Voice Actor
Writer
Queens
New York
Problem
Major
Constructs
Transitions
Many
Indeed
Persistent
Creationism
Even
Evolution
Organic
Nagging
Evidence
Inability
Functional
Design
Transition
Fossil
Cases
Absence
Construct
Stage
Accounts
Fossils
Imagination
Majors
Stages
Intermediary

More quotes by Stephen Jay Gould

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A man does not attain the status of Galileo merely because he is persecuted he must also be right.
Stephen Jay Gould
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Before Kuhn, most scientists followed the place-a-stone-in-the-bright-temple-of-knowledge tradition, and would have told you that they hoped, above all, to lay many of the bricks, perhaps even the keystone, of truth's temple. Now most scientists of vision hope to foment revolution. We are, therefore, awash in revolutions, most self-proclaimed.
Stephen Jay Gould
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The modern theory of evolution does not require gradual change. It in fact, the operation of Darwinian processes should yield exactly what we see in the fossil record. It is gradualism that we must reject, not Darwinism.
Stephen Jay Gould
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Recapitulation provided a convenient focus for the persuasive racism of white scientists they looked to the activities of their own children for comparison with normal adult behavior in lower races.
Stephen Jay Gould
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In their recently aborted struggle to inject Genesis literalism into science classrooms, fundamentalist groups followed their usual opportunistic strategy of arguing two contradictory sides of a question when a supposed rhetorical advantage could be extracted from each.
Stephen Jay Gould
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If there is any consistent enemy of science, it is not religion, but irrationalism.
Stephen Jay Gould
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Creationist critics often charge that evolution cannot be tested, and therefore cannot be viewed as a properly scientific subject at all. This claim is rhetorical nonsense.
Stephen Jay Gould
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All science is intelligent inference excessive literalism is delusion, not a humble bowing to evidence.
Stephen Jay Gould
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Current utility and historical origin are different subjects.
Stephen Jay Gould
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Einstein's theory of gravitation replaced Newton's, but apples did not suspend themselves in mid-air, pending the outcome. And humans evolved from apelike ancestors whether they did so by Darwin's proposed mechanism or by some other yet to be discovered.
Stephen Jay Gould
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Evolution is a process of constant branching and expansion.
Stephen Jay Gould
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All interesting issues in natural history are questions of relative frequency, not single examples. Everything happens once amidst the richness of nature. But when an unanticipated phenomenon occurs again and again—finally turning into an expectation—then theories are overturned.
Stephen Jay Gould
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But we all recognise the primary foible of frail humanity - our propensity for embracing hope and shunning logic, our tendency to believe what we desire rather than what we observe.
Stephen Jay Gould
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Humans are not the end result of predictable evolutionary progress, but rather a fortuitous cosmic afterthought, a tiny little twig on the enormously arborescent bush of life, which if replanted from seed, would almost surely not grow this twig again.
Stephen Jay Gould
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No one should feel at all offended or threatened by the obvious fact that we are not all born entirely blank, or entirely the same, in our mixture of the broad behavioral propensities defining what we call temperament.
Stephen Jay Gould
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Most books, after all, are ephemeral their specifics, several years later, inspire about as much interest as daily battle reports from the Hundred Years' War.
Stephen Jay Gould
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Surely the mitochondrion that first entered another cell was not thinking about the future benefits of cooperation and integration it was merely trying to make its own living in a tough Darwinian world
Stephen Jay Gould
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Paleontologists [fossil experts] have paid an exorbitant price for Darwin's argument. We fancy ourselves as the only true students of life's history, yet to preserve our favored account of evolution by natural selection we view our data as so bad that we almost never see the very process we profess to study.
Stephen Jay Gould
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Can I pay any higher tribute to a man [George Gaylord Simpson] than to state that his work both established a profession and sowed the seeds for its own revision? If Simpson had reached final truth, he either would have been a priest or would have chosen a dull profession. The history of life cannot be a dull profession.
Stephen Jay Gould
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Transitional forms are generally lacking at the species level, but they are abundant between larger groups.
Stephen Jay Gould